Scientific articles

Technical reports

Meeting documents

Boye TK, Simon MJ, Laidre KL, Rigét F, Stafford KM (2020) Seasonal detections of bearded seal (Erignathus barbatus) vocalizations in Baffin Bay and Davis Strait in relation to sea ice concentration. Polar Biol. 43:1493-1502

Chambault P, Tervo OM, Garde E, Hansen RG, Blackwell SB, Williams TM, Dietz R, Albertsen CM, Laidre K, Richard P, Sinding M-HS, Schmidt HC, Heide-Jørgensen MP (2020) The impact of rising sea temperatures on an Arctic top predator, the narwhal. Nature Scientific Reports 10:18678

Laidre KL, Atkinson S, Regehr EV, Stern HL, Born EW, Wiig Ø, Lunn NJ, Dyck M (2020) Interrelated ecological impacts of climate change on an apex predator. Ecological Applications 30: e02071

Laidre KL, Atkinson SN, Regehr EV, Stern H, Born EW, Wiig Ø, Lunn NJ, Dyck M, Heagerty P, Cohen B (2020) Transient benefits of climate change for a high Arctic polar bear (Ursus maritimus) subpopulation. Global Change Biology 26:6251-6265.

Laidre KL, Stirling I (2020) Grounded icebergs as maternity denning habitat for polar bears (Ursus maritimus) in North and Northeast Greenland. Polar Biology 43:937-943.

Ugarte F, Rosing-Asvid A, Heide-Jørgensen MP, Laidre KL (2020) Marine Mammals of the Greenland Seas. In: Goldstein, M.I., DellaSala, D.A. (Eds.), Encyclopedia of the World’s Biomes, vol. 2. Elsevier, pp. 575–586.

Laidre, K. L., S. Atkinson, E. V. Regehr, H. L. Stern, E. W. Born, Ø. Wiig, N. J. Lunn, M. Dyck. 2019. Interrelated ecological impacts of climate change on an apex predator. Ecological Applications. In Press.

Post, E., R. B. Alley, T. R. Christensen, M. Macias-Fauri, B. C. Forbes, M. Gooseff, A. Iler, J. T. Kerby, K. L. Laidre, M. E. Mann, J. Olofsson, J. C. Stroeve, F. Ulmer, R. Virginia, and M. Wang. 2019. The Polar Regions in a 2oC warmer world. Science Advances. In Press

Wiig, Ø, P. Henrichsen, T. Sjøvold, E.W. Born, K. L. Laidre, R. Dietz, C. Sonne, J. Aars. 2019. Variation in non-metrical skull traits (1830-2013) across East Greenland and adjacent polar bear (Ursus maritimus) subpopulations. Polar Biology 42(3):461-474.

Chambault P, Albertsen CM, Patterson TA, Hansen RG, Tervo O, Laidre K and Heide-Jørgensen MP (2018) Sea surface temperature predicts the movements of an Arctic cetacean: the bowhead whale. Nature Scientific Reports 8:9658

Escajeda E, Laidre KL, Born EW, Wiig Ø, Atkinson S, Dyck M, Ferguson SH, Lunn NJ (2018) Identifying shifts in maternity den phenology and habitat characteristics of polar bears (Ursus maritimus) in Baffin Bay and Kane Basin. Polar Biology 41(1): 87-100. 10.1007/s00300-017-2172-6

Hauser DDW, Laidre KL, Stern HL (2018) Vulnerability of Arctic marine mammals to vessel traffic in the increasingly ice-free Northwest Passage and Northern Sea Route. Proceedings of the National Academy of Sciences. doi/10.1073/ pnas.1803543115

Laidre KL and Regehr EV (2018) Arctic marine mammals. In “Encyclopedia of Marine Mammals” (Bernd Würsig, J.G.M. Thewissen, and Kit M. Kovacs, eds.), 3rd edition. Pp 34-40. Academic Press/ Elsevier, San Diego, CA, USA

Laidre KL, Stirling I, Estes J, Kochnev A and Roberts J (2018). Historical and potential future importance of large whales as food for polar bears. Frontiers in Ecology and the Environment. 16(9): 515-524

Rode K, Fortina JK, Garshelis D, Dyck M, Sahanatien V, Atwood T, Belikov S, Laidre KL, Obbard ME, Vongraven D, Ware J, Wilder J (2018) Survey-based assessment of the frequency and potential impacts of recreation on polar bears. Biological Conservation. 227:121-132. doi:10.1016/j. biocon.2018.09.008

Born EW, Heilmann A, Kielsen Holm L, Laidre KL, Iversen M (2017). Walruses in West and Northwest Greenland – An interview survey about the catch and the climate. Monographs on Greenland Vol. 355– Man and Society Vol. 44. Museum Tusculanum Press, Copenhagen: 256 pp.

Born EW, Laidre K, Wiig Ø (2017). Isbjørnene i Baffin Bugt og Kane Bassin, p. 94-107. Tidsskriftet Grønland. Nr. 2/juni. 65. Årgang. Det grønlandske Selskab, Denmark

Laidre KL, Regehr EV (2017) Arctic marine mammals and sea ice. Chapter 21 (pgs 516-533) in Sea Ice, 3rd Edition. Edited by David N. Thomas. Wiley-Blackwell ISBN: 978-1-118-77838-8. 664 pages

Hunt GL Jr., Drinkwater K, Arrigo, Berge, Daly KL, Danielson S, Daase M, Hop H, Isla E, Karnovsky N, Laidre K, Mueter FJ, Murphy EJ, Renaud PE, Smith Jr. WO, Trathan P, Turner J, Wolf-Gladrow D (2016) Advection in polar and sub-polar environments: Impacts on high latitude marine ecosystems. Progress in Oceanography 149: 40– 81

Laidre K, Moon T, Hauser D, McGovern R, Heide-Jørgensen MP, Dietz R, Hudson B (2016) Use of Glacial Fronts by Narwhals (Monodon monoceros) in West Greenland. Biology Letters 12: 20160457.

George JC, Druckenmiller M, Laidre KL, Suydam R, Person B (2015). Western Arctic bowhead whale body condition and links to summer sea ice and upwelling in the Beaufort Sea. Progress in Oceanography 136: 250-262

Heide-Jørgensen MP and Laidre KL (2015) Surfacing time, availability bias and abundance of humpback whales in West Greenland. Journal of Cetacean Research and Management 15: 1-8

MacIntyre KQ, Stafford KM, Conn PB, Boveng PL, Laidre KL (2015) The relationship between sea ice concentration and the spatio-temporal distribution of vocalizing bearded seals (Erignathus barbatus) in the Bering, Chukchi, and Beaufort Seas from 2008-2011. Progress in Oceanography 136: 241-249.

Patyk KA, Duncan C, Nol P, Sonne C, Laidre K, Obbard M, Wiig Ø, Aars J, Regehr EV, Gustafson LL, Atwood T (2015) Establishing a definition of polar bear health (Ursus maritimus): a guide to research and management activities. Science of the Total Environment 514: 371-378.

Rasmussen M, Koblitz J, and Laidre KL (2015) Buzzes and rather high frequency clicks recorded from narwhals (Monodon monoceros) at their wintering feeding ground. Aquatic Mammals 41(3): 256-264

Hauser, DDW, Laidre KL, Suydam R, Richard PR (2014) Population-specific home ranges and migration timing of Pacific Arctic beluga whales (Delphinapterus leucas). Polar Biology 37: 1171-1183

Nielsen NH, Larsen RS, Laidre K, Heide-Jørgensen MP (2014) Identification of Potential Foraging Areas for Bowhead Whales in Baffin Bay and Adjacent Waters. Arctic 06/2015

Born EW, B Mikkelsen, E Stefansson, KL Laidre, LW Andersen, FF Rigét, M Villum Jensen, D Bloch. (2013) A note on a walrus’ European Odyssey. Walrus of the North Atlantic. Eds. R.E.A Stewart, K. Kovacs, M. Aquarone. NAMMCO Scientific Publication Series, Volume 9: In Press. ISSN: 2309-2491

Gregr EJ, Baumgartner MF, Laidre KL, Palacios DM (2013) Marine mammal habitat models come of age: the emergence of ecological and management relevance. Endangered Species Research 22:205-212.

Heide-Jørgensen MP, Laidre KL, Fossette S, Rasmussen M, Nielsen NH, Hansen RG (2013) Abundance of walruses in Eastern Baffin Bay and Davis Strait. Walrus of the North Atlantic. Eds. Stewart REA, Kovacs K, Aquarone M. NAMMCO Scientific Publication Series, Volume 9: In Press. ISSN: 2309-2491

Palacios, DM, Baumgartner MF, Laidre KL, Gregr EJ (2013) The challenge ahead: integrating en-vironmentally and behaviorally mediated ecolo-gical processes in marine mammal distribution models. Endangered Species Research 22:191-203.

Reid DG, Berteaux D, Laidre KL (Lead authors), Angerbjörn A, Angliss R, Born EW, Boveng P, Cluff D, Ehrich D, Ferguson SH, Garlich-Miller J, Gauthier G, Gunn A, Kovacs KM, Lecomte N, Lowry LF, McLoughlin P, Litovka D, Moore S, Mustonen K, Mustonen T, Nguyen L, Peacock E, Poole K, Quakenbush L, Russell D, Schmidt NM, Sheftel B, Simpkins M, Sittler B, Slough B, Smith A, Ugarte F, Vongraven D, Wiig Ø (2013) Mammals, Chapter 3, pp. 80-124 in: Meltofte, H. (ed.), 2013. Arctic Biodiversity Assessment. Status and trends in Arctic biodiversity. Conservati-on of Arctic Flora and Fauna, Akureyri: 557 pp.

Stewart REA, Born EW, Dietz R, Heide-Jørgensen MP, Rigét FF, Laidre KL , Villum Jensen M, Knutsen LØ, Fossette S (2013) Abundance of Atlantic walrus in the North Water during summer. Walrus of the North Atlantic. Eds. Stewart REA, Kovacs K, Aquarone M. NAMMCO Scientific Publication Series, Volume 9: In Press. ISSN: 2309-2491

Hansen RG, Heide-Jørgensen MP, Laidre KL (2012) Recent abundance estimates of bowhead whales in Isabella Bay, Canada. Journal of Cetacean Research Management 12(3): 317-319

Heide-Jørgensen MP, Laidre KL, Litovka D, Villum Jensen M, Grebmeier JM, Sirenko BI (2012) Identifying gray whale (Eschrichtius robustus) foraging grounds along the Chukotka Peninsula, Russia using satellite telemetry. Polar Biology 35: 1035-1045.

Stafford KM, Laidre KL, Heide-Jørgensen MP (2012) First acoustic recordings of narwhals (Monodon mo-noceros) in winter. Marine Mammal Science 28(2): E197-E207

Born EW, Heilmann A, Kielsen Holm L, Laidre KL. 2011. Polar bears in Northwest Greenland – An interview survey about the catch and the climate. Monographs on Greenland (Meddelelser om Grønland) Volume 351 ISBN 9788763531689. 250 pp.

Stafford K, Laidre KL, Heide-Jørgensen MP (2011) First wintertime recording of narwhals in West Greenland. Marine Mammal Science. In Press.

Heide-Jørgensen MP, Laidre KL, Simon M, Burt ML, Borchers DL and Rasmussen M (2010) Abundance of fin whales in West Greenland in 2007. Journal of Cetacean Research and Management. 11(2): 83–88

Heide-Jørgensen MP, Witting L, Laidre KL and Hansen RG (2010) Fully corrected estimates of minke whale abundance in West Greenland in 2007 Journal of Cetacean Research and Management. 11(2): 75–82

Laidre KL, Heide-Jørgensen MP, Heagerty P, Cossio A, Bergstrom B and Simon M (2010). Spatial associations between large baleen whales and their prey in West Greenland. Marine Ecology Progress Series 402:269-284

Laidre KL, Heide-Jørgensen MP, Logsdon ML, Delwiche L, Nielsen TG (2010) A whale of an opportunity: Examining the vertical structure of high Arctic waters using space-based ocean observations and instrumented marine predators. Marine Biology Research 6: 519-529

Dietz, R., M. P. Heide-Jørgensen, P. Richard, J. Orr, K. L. Laidre, and H. C. Schmidt. 2008. Movements of narwhals (Monodon monoceros) from Admiralty Inlet monitored by satellite telemetry. Polar Biology. 31: 1295-1306.

Heide-Jørgensen, M. P., D. L. Borchers, L. Witting, M. J. Simon, K. L. Laidre,> and D. Pike. In Press. Final estimates of large whale abundance in West Greenland waters from an aerial survey in 2005. Journal of Cetacean Research and Management

Heide-Jørgensen, M. P., R. Dietz, K. L. Laidre, P. Nicklen, E. Garde, P. Richard, J. Orr. 2008. Resighting of a narwhal (Monodon monoceros) instrumented with a satellite transmitter. Arctic 61(4). 395-399.

Laidre, K.L., I. Stirling, L. Lowry, Ø. Wiig, M. P. Heide-Jørgensen, and S. Ferguson. 2008. Quantifying the sensitivity of arctic marine mammals to climate-induced habitat change. Ecological Applications 18(2): S97-S125.

Laidre, K.L., M. P. Heide-Jørgensen, and J.R. Orr. 2008. Reactions of Narwhals, Monodon Monoceros, to Killer Whale, Orcinus orca, attacks in the Eastern Canadian Arctic. . The Canadian Field-Naturalist. 120: 457-465.

Stafford, K., S. E. Moore, K. L. Laidre, and M. P. Heide-Jørgensen. 2008. Bowhead whale springtime song offshore West Greenland. J of Acoustical Society of America 124(5): 3315-3323.

Heide-Jørgensen, M. P. & K. L. Laidre. 2007. Autumn-space use patterns of humpback whales (Megaptera novaeangliae) in West Greenland. Journal of Cetacean Research and Management 9(2):121-126.

Heide-Jørgensen, M. P., K. L. Laidre, M. L. Logsdon & T. G. Nielsen 2007. Springtime coupling between phytoplankton, sea ice and sea temperature in Disko Bay, West Greenland. Progress in Oceanography 73:79-95.

Heide-Jørgensen, M.P., K. L. Laidre, D. Borchers, F. Samara & H. Stern. 2007. Increasing abundance of bowhead whales in West Greenland. Biology Letters 3: 577-580.

Heide-Jørgensen, M.P., Simon, M.J. & Laidre, K.L. 2007. Estimates of large whale abundance in Greenland waters from a ship-based survey in 2005. J. Cetacean Research and Management. 9(2): 95-104.

Laidre, K. L., M. P. Heide-Jørgensen, and T. G. Nielsen. 2007. The role of the bowhead whale as a predator in West Greenland. Marine Ecology Progress Series 346: 285-297

Laidre, K.L. & Heide-Jørgensen, M.P. 2007. Using narwhal s as oceanobserving platforms in the high Arctic. Oceanography 20(4): 18-23.

Heide-Jørgensen, M.P., Laidre, K.L., Jensen, M.V., Dueck, L. and L. D. Postma, L.D. 2006. Dissolving stock discreteness with satellite tracking: Bowhead whales in Baffin Bay. Marine Mammal Science, 22(1): 34-45.

Koski, W. R.,Heide-Jørgensen M.P, Laidre K.L. 2006. Winter abundance of bowhead whales, Balaena mysticetus, in Hudson Strait in March 1981. Journal of Cetacean Research and Management 8:139-144.

Laidre K. L. and R. J. Jameson. 2006. Foraging patterns and prey selection in an increasing and expanding sea otter population. Journal of Mammalogy 87(4): 799-807.

Laidre K. L., J. A. Estes, M. T. Tinker, J. Bodkin, D. Monson, K. Schneider. 2006. Patterns of growth and body condition in sea otters from the Aleutian archipelago before and after the recent population decline. Journal of Animal Ecology 75:978-989.

Moore, S. E. and Laidre K.L 2006. Analysis of sea ice trends scaled to habitats used by bowhead whales in the western Arctic. Ecological Applications 16(3): 932-944

Hobbs, R.C., K.L. Laidre, D.J.Vos & B. A.Mahoney, 2005. Movements and area use of belugas, Delphinapterus leucas, in a subarctic Alaskan estuary. Arctic 58(4):331-340.

Laidre, K.L. & M.P.Heide-Jørgensen, 2005. Arctic sea ice trends and narwhal vulnerability. Biological Conservation 121:509-517.

Laidre, K.L. & M.P.Heide-Jørgensen, 2005. Winter feeding intensity of narwhals (Monodon monoceros).Marine Mammal Science 21(1):45-57.

Simpkins, M.A., K.L. Laidre & P.J. Heagerty, 2005. Multivariate regression of satellite-linked dive recorder data: Simultaneous analysis of all bins.Marine Mammal Science 21(2):243-259.

Heide-Jørgensen, M.P. & K. L. Laidre, 2004. Declining extent of open-water refugia for top predators in Baffin Bay and adjacent waters. AMBIO 33:488-495.

Laidre K.L., M.P.Heide-Jørgensen, M.L. Logdson, R.C. Hobbs, P.Heagerty, R.Dietz, O.A. Jørgensen & M.A.Treble, 2004. Seasonal narwhal habitat associations in the high Arctic.Marine Biology 145:821-831.

Laidre K.L., M.P.Heide-Jørgensen,O.A. Jørgensen & M.A.Treble, 2004. Deep ocean predation by a high Arctic cetacean. ICES Journal of Marine Science 61(3):430-440.

Laidre, K.L. & M.P.Heide-Jørgensen, 2004. Arctic sea ice trends: Can narwhals track changes. Biological Conservation 121:509-517.

Laidre, K.L., M.P.Heide-Jørgensen, M.L. Logdson, R.C. Hobbs, R.Dietz & G.R. VanBlaricom, 2004. Fractal analysis of narwhal space use patterns. Zoology 107:3-11.

Heide-Jørgensen, M.P., K. L. Laidre, Ø. Wiig, M.V. Jensen, L. Dueck, H.C. Schmidt & R.C. Hobbs, 2003. From Greenland to Canada in ten days: Tracks of bowhead whales, Balaena mysticetus, across Baffin Bay. Arctic 56: 21-31.

Heide-Jørgensen, M.P., P. Richard, R. Dietz, K.L. Laidre & J.Orr, 2003. An estimate of the fraction of belugas (Delphinapterus leucas) in the Canadian High Arctic that winter in West Greenland. Polar Biology 23: 318-326.

Heide-Jørgensen, M.P., R. Dietz, K. Laidre, H.C. Schmidt, P. Richard & J.Orr, 2003. The migratory behaviour of narwhals (Monodon monoceros). Canadian Journal of Zoology 81: 1298-1305.

Laidre, K.L., M.P.Heide-Jørgensen, R.Dietz, R.C. Hobbs & O.A. Jørgensen, 2003. Deep-diving by narwhals, Monodon monoceros: differences in foraging behavior between wintering areas. Marine Ecology Progress Series 261: 269-281.

Heide-Jørgensen, M.P., R. Dietz, K. Laidre & P. Richard, 2002. Autumn movements, home range and winter density of narwhals (Monodon monoceros) from Tremblay Sound, Baffin Island. Polar biology 25: 331-341.

Innes, S., M.P. Heide-Jørgensen, J. Laake, K.L. Laidre, H. Cleator, P. Richard & R.E.A. Stewart, 2002. Surveys of belugas and narwhals in the Canadian high Arctic in 1996. Scientific Publications of the North Atlantic Marine Mammal Commission Vol. 4: 169-190.

Laidre, K.L., M.P. Heide-Jørgensen & R. Dietz, 2002. Diving behaviour of narwhals (Monodon monoceros) at two coastal localities in the Canadian Arctic. Canadian Journal of Zoology 80: 624-635.